Cheap flights from Ireland to Washington, D.C. from $366

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Washington, D.C. departing on 10/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to Washington, D.C.

Recent round-trip flight deals from Ireland to Washington, D.C.

KLM Logo
10:45 am - 6:00 pmDUB-DCA
12h 15m1 stop
KLM Logo
1:45 pm - 7:45 amDCA-DUB
13h 00m1 stop
$424KLM
Find Deal
Fri, Nov 7 - Fri, Nov 14
Multiple Airlines Logo
5:00 am - 3:31 pmDUB-DCA
15h 31m2 stops
Multiple Airlines Logo
11:05 am - 7:10 amDCA-DUB
15h 05m2 stops
$439Multiple Airlines
Find Deal
Tue, Nov 11 - Sun, Nov 16
Delta Logo
1:25 pm - 11:52 pmDUB-DCA
14h 27m2 stops
Delta Logo
11:10 am - 7:50 amDCA-DUB
15h 40m2 stops
$443Delta
Find Deal
Fri, Oct 31 - Thu, Nov 6
United Airlines Logo
9:00 am - 6:05 pmDUB-DCA
14h 05m1 stop
United Airlines Logo
5:00 pm - 9:55 amDCA-DUB
11h 55m1 stop
$445United Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
Delta Logo
5:55 am - 5:00 pmDUB-DCA
16h 05m2 stops
Delta Logo
12:59 pm - 7:45 amDCA-DUB
13h 46m2 stops
$446Delta
Find Deal
Wed, Nov 26 - Tue, Feb 24
United Airlines Logo
9:00 am - 6:05 pmDUB-DCA
14h 05m1 stop
United Airlines Logo
7:00 pm - 9:55 amDCA-DUB
9h 55m1 stop
$447United Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
Air Canada Logo
9:00 am - 9:56 pmDUB-DCA
17h 56m2 stops
Air Canada Logo
11:05 am - 7:10 amDCA-DUB
15h 05m2 stops
$453Air Canada
Find Deal
Fri, Nov 7 - Fri, Nov 14
Air Canada Logo
9:00 am - 7:45 pmDUB-DCA
15h 45m1 stop
Air Canada Logo
9:40 am - 7:10 amDCA-DUB
16h 30m1 stop
$454Air Canada
Find Deal
Wed, Nov 26 - Tue, Feb 24
British Airways Logo
4:00 pm - 10:02 amDUB-DCA
23h 02m2 stops
British Airways Logo
3:54 pm - 10:15 amDCA-DUB
13h 21m2 stops
$596British Airways
Find Deal
Fri, Dec 5 - Mon, Dec 8
British Airways Logo
4:00 pm - 10:02 amDUB-DCA
23h 02m2 stops
British Airways Logo
3:54 pm - 10:15 amDCA-DUB
13h 21m2 stops
$598British Airways
Find Deal
Fri, Dec 5 - Mon, Dec 8

Delta flights from Ireland to Washington, D.C. Reagan-National Airport

Our best Delta deals on Ireland to Washington, D.C. Reagan-National Airport flight tickets
Delta
Oct 31
DUB1:25 pmDublin
14h 27m
2 stops
DCA11:52 pmWashington, D.C. Reagan-National
Nov 6
DCA11:10 amWashington, D.C. Reagan-National
15h 40m
2 stops
DUB7:50 amDublin
Delta
Nov 26
DUB5:55 amDublin
16h 05m
2 stops
DCA5:00 pmWashington, D.C. Reagan-National
Feb 24
DCA12:59 pmWashington, D.C. Reagan-National
13h 46m
2 stops
DUB7:45 amDublin
Delta
Feb 11
DUB1:25 pmDublin
14h 43m
2 stops
DCA11:08 pmWashington, D.C. Reagan-National
Feb 18
DCA5:00 pmWashington, D.C. Reagan-National
14h 40m
2 stops
DUB12:40 pmDublin

Air Canada flights from Ireland to Washington, D.C. Reagan-National Airport

Our best Air Canada deals on Ireland to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
Nov 7
DUB9:00 amDublin
17h 56m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
Nov 14
DCA11:05 amWashington, D.C. Reagan-National
15h 05m
2 stops
DUB7:10 amDublin
Air Canada
Nov 26
DUB9:00 amDublin
15h 45m
1 stop
DCA7:45 pmWashington, D.C. Reagan-National
Feb 24
DCA9:40 amWashington, D.C. Reagan-National
16h 30m
1 stop
DUB7:10 amDublin
Air Canada
Nov 8
DUB9:00 amDublin
17h 56m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
Nov 15
DCA11:05 amWashington, D.C. Reagan-National
15h 05m
2 stops
DUB7:10 amDublin

momondo Fare Finder

 
Customize your flight search to find flights from Ireland to Washington, D.C. Reagan-National Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from Ireland to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 11/7

10:45 am-6:00 pm

1 stop12h 15m

Washington, D.C. Reagan-National

Fri 11/14

1:45 pm-7:45 am

1 stop13h 00m

$424

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 11/11

5:00 am-3:31 pm

2 stops15h 31m

Washington, D.C. Reagan-National

Sun 11/16

11:05 am-7:10 am

2 stops15h 05m

$439

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 10/31

1:25 pm-11:52 pm

2 stops14h 27m

Washington, D.C. Reagan-National

Thu 11/6

11:10 am-7:50 am

2 stops15h 40m

$443

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Sat 11/8

9:00 am-6:05 pm

1 stop14h 05m

Washington, D.C. Reagan-National

Sat 11/15

5:00 pm-9:55 am

1 stop11h 55m

$445

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 11/26

5:55 am-5:00 pm

2 stops16h 05m

Washington, D.C. Reagan-National

Tue 2/24

12:59 pm-7:45 am

2 stops13h 46m

$446

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Sat 11/8

9:00 am-6:05 pm

1 stop14h 05m

Washington, D.C. Reagan-National

Sat 11/15

7:00 pm-9:55 am

1 stop9h 55m

$447

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 11/7

9:00 am-9:56 pm

2 stops17h 56m

Washington, D.C. Reagan-National

Fri 11/14

11:05 am-7:10 am

2 stops15h 05m

$453

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 11/26

9:00 am-7:45 pm

1 stop15h 45m

Washington, D.C. Reagan-National

Tue 2/24

9:40 am-7:10 am

1 stop16h 30m

$454

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 12/5

4:00 pm-10:02 am

2 stops23h 02m

Washington, D.C. Reagan-National

Mon 12/8

3:54 pm-10:15 am

2 stops13h 21m

$596

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 12/5

4:00 pm-10:02 am

2 stops23h 02m

Washington, D.C. Reagan-National

Mon 12/8

3:54 pm-10:15 am

2 stops13h 21m

$598

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Ireland to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Washington, D.C. Reagan-National?

British Airways, American Airlines, and Finnair are the most popular carriers operating from Ireland to Washington, D.C. Reagan-National

Cheap Ireland to Washington, D.C. Reagan-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Washington, D.C. Reagan-National Airport

Direct flights

None
There are no direct flights from Ireland to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Ireland to Washington, D.C. Reagan-National Airport.
  • When did momondo last update prices for flights from Ireland to Washington, D.C. Reagan-National Airport?

    Prices for flights from Ireland to Washington, D.C. Reagan-National Airport are updated daily.

  • How old do you have to be to fly from Ireland to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Fairfax
Reston
Glen Burnie
Gaithersburg
Springfield
Linthicum Heights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Ireland.

Can I find flights from Ireland to Washington, D.C. with flexible booking policies on momondo?

Flights from Ireland to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ireland to Washington, D.C.?

momondo helps you find the best flight between Ireland and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ireland to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Ireland and alert you when they change.

An easier way to manage your Washington, D.C. Reagan-National Airport trip

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1 adult
Sat 10/25
Sat 11/1

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